Toy helicopter



1,481,826 L. w. BROWN "TOY HELICOPTER Filed Sept. 19. 1922 ATTORMEYS 55body.

Patented Jan. 29, 1924.

UNlTE'D STATES LAWRENCE W. BROWN, OFCLINTON MISSOURI.

TOY namoorrna.

Application filed September 19, 1922. Serial Nb. 589,229.

Toallwhomitnwyconce'm:

Be it known that I, LAWRENCE W. BROWN, a citizen of the United States,and resident of Clinton, in thecounty of Henry and State of Missouri,have invented certain new and useful Improvements in Toy Helicopters, of

which the following is a specification.

This invention relates to toys and more particularly to a helicopter.

' Briefly stated an important object of this invention is to provide atoy helicopter wherein front and rear plates are provided, the front orforward plate being connected to a source of energy and having a pitchopposite the pitch of the rear propeller whereby a more or less balancedpower is produced:

A further object is to provide a toy helicopter wherein the hub of theforemost propeller'acts as a bumper and as a gripping member whentwisting the rubber band employed as a source of energy.

Further the invention forming the subject matter of this applicationaims to rovide a toy helicopter which isfextremely ight and 2 thereforewill not break delicate objects which it may happen to strike while inflight. A further object is to provide a'toy of the character specifiedwhich is cheap to manufacture, durable in use and simple to operate.Further objects and advantages of the in vention will be apparent duringthe course of the following description.

In the accompanying drawing formin apart of this application and inwhich l1ke numerals are employed to, designate like parts throu hout thesame,

Figure 1 is a perspective of the improved to helicopter.

igure 2 is a longitudinal sectional view through the same.

Figure 3 is a fra mentary perspective of one of the propellers.

Figure 4 is a view similar to Figure 3 and showlng a similar portion-ofthe other. propeller. I

In the drawing wherein for the purpose of illustration is shown apreferred embodiment of the invention the numeral 5 designates a body orfuselage which may be of any determined material, such as paper orcelluloid and the material from which the tubular body is formed isarranged in s iral formation as particularly illustrated m Figure 1wherebg-Ito produces more or less yieldable owever, should be noted thatthe bod 5 is possessed of sufiicient strength to wit stand thelongitudinal strain incident to the employment of the particular type,of motor illustrated. Furthermore the bod; 5 is possessed of sufficientstrength to w1thstand contact with the various objects.

As illustrated in Figure 2 the tubular body 5 receives a rubber band 6employed as a source of energy and the rear end of the rubber band. isanchored to the rear end of the body through the medium of an attachingmember 7. It will be observed that the attaching member 7 is in thenature of a length of wire having its intermediate portion formed with aloop and its terminal portions formed with hooks 8 which engage the rearend of the body. r

The forward portion of the rubber band is secured to a stem 10 and thestem 10 is extended through a cap 11 arranged on the forward end of thebody 5. The cap 11 is bulged as at 11' and the stem 10 is journaled bythis bulged portion. The forward end of the stem 10 is secured to a hub12 of the propeller generally designated by the numeral 14. Figure 1illustrates that the intermediate portion of the propeller is providedwith lateral extensions or cars 15, each having an aperture 16 for thereception of the stem 10. Also this intermediate portion is providedwith an opening 16 adapted to receive the hub 12. In positioning thepropeller 14, the stem is extended through the opening 16 of each ear 15and then moved to the position shown.

The hub 12 which is preferably formed of cork or other yieldablematerial extends beyond the intermediate portion of the propeller andthereby forms a bumper or contact 'member so that when the helicopterstrikes an object damage will not occur. The drawing illustrates that acone shaped washer 40 is arranged on the stem between the propeller andthe cap 11 and thereby reduces friction between the parts to a minimum.

With reference to Figures 1 and 2 it will be observed that a secondpropeller 20 is fixedon the body rearwardly of the first namedpropeller, the intermediate portion of this propeller is formed with acentral opening 20" adapted to receive the body member '5. A pluralityof tangs or extensions 22 encircle the opening 20' and when thepropeller is positioned so these tangs may be confined beneath asleeve23. In

this manner the propeller may be secured to member 5. In this case theintermediate portion of the propeller is alsoprovided with projectionsor bars 26 each of which is formed with an opening to receive thetubular body 5. It is thus seen that the rear propeller 20 is securelyand positively connected to the forward portion of the body or fuselageand Figure 1 illustrates that the pitch of one propeller is oppositethat of the other. Consequently a balanced power is produced.

To the rear end of the body member 5 there is secured a vane 28 which isadapted to serve for guiding or steering the device.

This vane is also of such weight that it may balance the device when inflight.

in operation the tubular body 5 is held in one hand and the propeller ismanually rotated for twisting the sourceof energy =6. In twisting therubber band one of the propellers 145' is engaged by the forefinger ofthe operator, the winding being with the forefinger of the right hand.

When the toy is released both propellers will ra idl rotate and inopposite directions w ere y to draw the body through the air. By reasonof the light construction employed the toy will not damage fragileobjects it maystrike. In carrying out the invention the propellers 14and 20 are made from a material such as paper, celluloid or light metaland the other parts of the toy ma be made of any material.

t is to be understood that the form of the invention herewith shown anddescribed is to be taken as a preferred example of the same and thatsuch minor changes in arrangement andronstruction of parts may be madeas will remain within the spirit of the invention and the scope of whatis claimed. v Having thus described the invention, what I claim is 1. Atoy flying machine comprising a tubular body of a substantially uniformdiameter throughout, a propeller arranged at the forward portion of thebody, a hub secured to the propeller and terminating in advance of theintermediate portion of the same whereby to form a bumper, a stemconnected to the hub, .a rubber band connected to the stem and to therear portion of the tubular body and forming a source of power to rotatethe propeller, a second propeller secured on the body rearwardly of thefirst named propeller, and a vane seglg'ied to the rear portion of thetubular yi r 2. A toy flying machine comprising a tubular body of asubstantially uniform diameter throughout, a propeller arranged at theforward portion of the body, a

mamas the propeller and terminating in advance of the intermediateportion of the same whereby to form a bumper, a stem connected to thehub, a rubber band connected to the stem and to the rear portion of thetubular body and forming a source of power to rotate the propeller, asecond propeller secured on the body rearwardly of the first namedpropeller, a vane secured to the rear portion of the tubular body, saidsecond named propeller being formed with a centrally arranged openingrecciving the body and formed adjacent the opening with a plurality offorwardly directed attaching memhere.

3. A toy flying machine comprising a tubular body, a propeller arrangedat the forward portion of the body, a hub secured to the propeller andterminating in advance of the intermediate portion of the same wherebyto form a bumper, a stem connected to the hub, a rubber band connectedto the stem and to the rear portion of the tubular body and forming asource of power to rotate the propeller,'a second propeller sesecured onthe body rearwardly of the first named propeller, a vane secured to therear portion of the tubular body, said second named propeller beingformed with a centrally arranged opening receiving the body and formedadjacent the opening with a plurality of forwardly directed attachingmembers, and a sleeve formed on said body and receivin said forwardlydirected attaching mem rs.

4. A toy flying machine comprising a tubular body, a propeller arrangedat the forward portion of the body, a yieldable hub secured to thepropeller and forming a bumper, a stem, connected to the hub, a

rubber band connected to the stem and to the rear portion of the tubularbody and forming a source of power to rotate the propeller, a secondpropeller secured on the body rearwardl of the named. ropeller, saidsecon named-propeller being ormed with a centrally arranged openingreceiving the body and formed adjacent the opening with a plurality offorwardly directed attaching members, a sleeve formed on said body andreceiving said forwardly projecting members, and a cap secured on theforward portion of said bodyand having an openin receiving said stem.

5. A toy he icopter, comprising an elongated body member, a propellerrotatably supported at'the forward end thereof, a second propellerrigidly secured to the body member adjacent and at the rear of the firstnamed propeller, said propellers being so arranged that when rotated inopposite directions forward movement of the helicopter will occur, meanswhereby the propellers may be simultaneously rotated and hub secured tothe intermediate portion of in opposite directions, and means carried mas directly on the rearend of the body member whereby the helicopter willbe guided and balanced during flight.

6. A toy helicopter,-comprising an elongated body member, a propellerrotatably supported at the forward end thereof, a second pro ellerrigidly secured to the body member a jacent and at the rear of the firstnamed propeller, said propellers being so arranged that when rotated inopposite directions forward movement of the helico ter will occur, meanswhereby the prope lers may be simultaneously rotated and in oppositedirections, and a vane su ported directly on the rear end of the be ymember and ada ted to guide and balance the helicopter while in flight7. A toy helicopter, comprising 1: elongated tubular body member, aproler rotatably supported at the forward end of said body member, asecond propeller rigidly secured to-the body member adjacent the forwardpropeller and at the rear thereof,

said propellers being arranged so that when revolved in oppositedirections forward movement of the helicopter will occur, on extendingbetween the tubular membar and the'first named propeller whereby thetubular member and first named propeller may be rotated simultaneouslyand in opposite directions, and a vane supported directly on the rearend of the tubular member apt/ed to serve for guiding the helicopter andbalancing the same during flight thereot.

8. In a toy helicopter, a body member, a propeller rotatably supportedat the forward end of said body member, andan elongated hub for saidpropeller made of resilient material and adapted to serve as a bumperand thereby protect objects with which the same may collide.

9. In a deviw of the character described, a tubular body meber, a rubberband within said body mber and-extending longitudinally thereof, arotatable member secured to one end of said band, and adapted to rotateexteriorly of the tube, a clip secured to the other end of the band anddisposed within the tubular member, and outwardly bent hook-shapedprojections carried by the clip adapted to engage upon the associatedend of the tubular member and secure the tube and hand against rotationwith

